中国物理B ›› 2017, Vol. 26 ›› Issue (12): 127801-127801.doi: 10.1088/1674-1056/26/12/127801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Design and theoretical study of a polarization-insensitive multiband terahertz metamaterial bandpass filter

Hai-Peng Li(李海鹏), Wen-Yue Fu(付文悦), Xiao-Peng Shen(沈晓鹏), Kui Han(韩奎), Wei-Hua Wang(王伟华)   

  1. School of Physical Science and Technology, China University of Mining and Technology, Xuzhou 221116, China
  • 收稿日期:2017-05-14 修回日期:2017-07-06 出版日期:2017-12-05 发布日期:2017-12-05
  • 通讯作者: Hai-Peng Li E-mail:haipli@cumt.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11504418, 11447033, and 61372048) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2015XKMS075).

Design and theoretical study of a polarization-insensitive multiband terahertz metamaterial bandpass filter

Hai-Peng Li(李海鹏), Wen-Yue Fu(付文悦), Xiao-Peng Shen(沈晓鹏), Kui Han(韩奎), Wei-Hua Wang(王伟华)   

  1. School of Physical Science and Technology, China University of Mining and Technology, Xuzhou 221116, China
  • Received:2017-05-14 Revised:2017-07-06 Online:2017-12-05 Published:2017-12-05
  • Contact: Hai-Peng Li E-mail:haipli@cumt.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11504418, 11447033, and 61372048) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2015XKMS075).

摘要: We report the design of a novel multiband metamaterial bandpass filter (BPF) in the terahertz (THz)-wave region. The designed BPF is composed of a metal-dielectric-metal sandwiched structure with three nested rings on the top surface and a cross structure on the bottom surface. Full-wave simulation results show that the designed BPF has three transmission peaks at frequencies of 0.42, 1.27, and 1.86 THz with transmission rates of-0.87,-1.85, and-1.83 dB, respectively. Multi-reflection interference theory is introduced to explain the transmission mechanism of the designed triple-band BPF. The theoretical transmission spectrum is in good agreement with the full-wave simulated results. The designed BPF can maintain a stable performance as the incident angle varies from 0° to 30° for both transverse electric and transverse magnetic polarizations of the incident wave. The designed BPF can be potentially used in THz devices due to its multiband transmissions, polarization insensitivity, and stable wide-angle response in the THz region.

关键词: terahertz metamaterials, bandpass filter, full-wave simulation, multi-reflection interference theory

Abstract: We report the design of a novel multiband metamaterial bandpass filter (BPF) in the terahertz (THz)-wave region. The designed BPF is composed of a metal-dielectric-metal sandwiched structure with three nested rings on the top surface and a cross structure on the bottom surface. Full-wave simulation results show that the designed BPF has three transmission peaks at frequencies of 0.42, 1.27, and 1.86 THz with transmission rates of-0.87,-1.85, and-1.83 dB, respectively. Multi-reflection interference theory is introduced to explain the transmission mechanism of the designed triple-band BPF. The theoretical transmission spectrum is in good agreement with the full-wave simulated results. The designed BPF can maintain a stable performance as the incident angle varies from 0° to 30° for both transverse electric and transverse magnetic polarizations of the incident wave. The designed BPF can be potentially used in THz devices due to its multiband transmissions, polarization insensitivity, and stable wide-angle response in the THz region.

Key words: terahertz metamaterials, bandpass filter, full-wave simulation, multi-reflection interference theory

中图分类号:  (Multilayers; superlattices; photonic structures; metamaterials)

  • 78.67.Pt
42.25.Bs (Wave propagation, transmission and absorption) 78.20.-e (Optical properties of bulk materials and thin films) 78.20.Bh (Theory, models, and numerical simulation)